q_id stringlengths 5 6 | title stringlengths 3 301 | selftext stringlengths 0 39.2k | document stringclasses 1
value | subreddit stringclasses 3
values | url stringlengths 4 132 | answers dict | title_urls list | selftext_urls list | answers_urls list |
|---|---|---|---|---|---|---|---|---|---|
8xr4og | How did uranium come to be commonly depicted as glowing and green? | [Uranium ore itself](_URL_1_)is not really glowing green [as depicted in video games](_URL_0_), and neither are [uranium fuel pellets](_URL_2_). So how did the popular, iconic depiction of this substance come to be so different than what it actually is? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/8xr4og/how_did_uranium_come_to_be_commonly_depicted_as/ | {
"a_id": [
"e259ofh"
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"text": [
"The color \"green\" has been associated with radioactivity because of the public associations with radium, which was often experienced as having a greenish-yellow glow to it, especially as radioluminscent paint. So green = radioactive has been a... | [] | [
"http://well-of-souls.com/civ/images/uranium3.jpg",
"https://cna.ca/wp-content/uploads/2014/06/Uranium-ore-2.jpg",
"https://geoinfo.nmt.edu/resources/uranium/images/IMG0550.jpg"
] | [
[
"https://en.wikipedia.org/wiki/Cherenkov_radiation",
"https://thumbs.worthpoint.com/zoom/images1/1/0311/14/dense-torbernite-congo-uranium-ore_1_bcac366483582185c85a081e23921d2b.jpg",
"https://en.wikipedia.org/wiki/File:Uranophane-Malachite-131737.jpg",
"http://media.kenanaonline.com/photos/1238066... | |
2rvzhy | why do most subreddits ban witch hunts? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2rvzhy/eli5_why_do_most_subreddits_ban_witch_hunts/ | {
"a_id": [
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"score": [
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2,
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"text": [
"Because whether there is evidence for something or not, mob justice is cruel and it doesn't really care about evidence anyway.",
"Witch hunts usually involve the posting of personal information, whi... | [] | [] | [
[],
[],
[]
] | ||
365e3b | who are the rohingya people? how come i almost never hear about them? even here on reddit or islamic subreddits. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/365e3b/eli5_who_are_the_rohingya_people_how_come_i/ | {
"a_id": [
"craxfma"
],
"score": [
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"text": [
"It's strange you haven't seen it on Reddit, they often make it to the top on r/Islam like [yesterday](_URL_2_) for example.\n\nThe Rohingya are an indigenous population who follow the Islamic faith living in the north of the Rakhine State of Mya... | [] | [] | [
[
"http://www.youtube.com/watch?v=GtAl9zJ3t-M",
"http://www.npr.org/sections/thetwo-way/2015/05/14/406747021/video-migrants-adrift-in-andaman-sea-after-thailand-turns-them-away",
"http://www.reddit.com/r/islam/comments/35z4sr/the_boat_of_starving_rohingya_refugees_that_no/",
"http://content.time.com... | ||
2ozp3e | Were there any major ancient cities that didn't form around major waterways? | As my title asks I want to know if large cities formed in areas that wasn't on or near a major body of water (river, lake, sea, ocean) If any did what was the terrain like and why did it form their?
Also did any major cities form on rivers that had nothing upstream of them except the rivers source or uninhabited lands... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2ozp3e/were_there_any_major_ancient_cities_that_didnt/ | {
"a_id": [
"cms0yek",
"cms89ht",
"cms8hny"
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9,
18
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"text": [
"The village of Châteumeillant in Central France was once considered an immensely holy city that was also the capital of the Bituriges tribe. The Bituriges were given the honor of choosing the king of ... | [] | [] | [
[
"http://www.theguardian.com/books/2013/oct/11/ancient-paths-graham-robb-review"
],
[
"http://www.reddit.com/r/AskHistorians/wiki/rules#wiki_answers"
],
[]
] | |
3k2t44 | Why was Wallonia the first region on the European continent to industrialize so thoroughly? | Why Wallonia in particular? What made it so suited for industrial development? It has always struck me as kind of odd, because before the Industrial Revolution came along Wallonia was (to my best knowledge) not particularly wealthy or economically successful compared to other regions in the proximity (Holland, Brabant,... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/3k2t44/why_was_wallonia_the_first_region_on_the_european/ | {
"a_id": [
"cuudrfg"
],
"score": [
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],
"text": [
"I have not heard of Wallonie being called \"the first region o nthe European continent to industrialize so thoroughly,\" can you share your source, please? \n\nRegardless, a lot of the industrial machines were invented to help with coal mining. U... | [] | [] | [
[]
] | |
ciuh16 | how do icbm travel such long distance in short amount of time? can they be intercepted? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/ciuh16/eli5_how_do_icbm_travel_such_long_distance_in/ | {
"a_id": [
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"score": [
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"text": [
"It's a warhead strapped on a rocket. Rockets go fast.\n\nIf you can identify and properly track the rocket, sure. You'll need a rocket that can go faster tha... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
3s582n | why are video games usually released in the fall? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3s582n/eli5_why_are_video_games_usually_released_in_the/ | {
"a_id": [
"cwu669p"
],
"score": [
2
],
"text": [
"Mabye you more likely to stay inside and play video games in the colder weather. Rather than the Spring/Summer when everyone is going out. "
]
} | [] | [] | [
[]
] | ||
8dhaah | how is it possible that the particle accelerator at cern can resist 2 billion celsius? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8dhaah/eli5_how_is_it_possible_that_the_particle/ | {
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"text": [
"The total amount of energy is not all that much, it's just concentrated in an extremely small area. The amount of material that actuall... | [] | [] | [
[],
[],
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Negative_temperature#Lasers"
]
] | ||
my37f | what 'justified' the holocaust at the time? | Something I've always wondered. What inspired the hatred towards Jews (amongst many, many others) and how did this jump to "round them all up and kill them"? How aware were the German public of this happening and did any try to stop it? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/my37f/elif_what_justified_the_holocaust_at_the_time/ | {
"a_id": [
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"score": [
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"text": [
"Read \"Mein Kampf\" if you can stomach it.",
"*\"What inspired the hatred towards Jews?\... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[]
] | |
60qamr | why is hot food more aromatic? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/60qamr/eli5_why_is_hot_food_more_aromatic/ | {
"a_id": [
"df8fg79"
],
"score": [
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"text": [
"That is a good question. I'm going to do something that i hate when other people do it. \n\nRelatively baseless speculation by a layperson who thinks they are smart.\n\nThink about how smell works. You get these little particles in the air and... | [] | [] | [
[]
] | ||
3zjukm | paying taxes in the us | I've been puzzled by how many Americans appear to consider taxes an expense in the same sense as a mortgage or groceries. I assumed it was a cultural thing and let it go, but it recently occured to me that the entire process of paying your taxes might be very different from where I live.
Can anybody give me an ELI5 of... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3zjukm/eli5_paying_taxes_in_the_us/ | {
"a_id": [
"cymogu1",
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"score": [
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7
],
"text": [
"For a person getting an hourly wage or salary you pay a 6.25% social security tax and from 10 to 35 % income tax. Those taxes are deducted from every paycheck you receive If you own your own business t... | [] | [] | [
[],
[],
[]
] | |
17hqd1 | What happens to a diver in a tank truck filled with water, that crashes against an object at high speed? | Assumption:
- the specific weight of the diver is equal to the specific weight of water.
- the diver does not need any diving equipment.
- the object the truck crashes into, does not move or break on impact.
What happes to the body in the water? In what ways is it affected by the impact? How do the injuries compar... | askscience | http://www.reddit.com/r/askscience/comments/17hqd1/what_happens_to_a_diver_in_a_tank_truck_filled/ | {
"a_id": [
"c85n4vg",
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"score": [
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"text": [
"Well, assuming the tank stays intact (and the impact thus is nearly instantaneous) and the tank is full...\n\nAll of the water has inertia, and wants to keep moving. When the tank hits the wall, and stops, all the water want... | [] | [] | [
[],
[]
] | |
7e8jwn | why do cities destroy old football stadiums and not keep them whenever there’s a new football stadium? | Case in point, the Georgia Dome. It’s being demolished today in favor of the Mercedes Benz Stadium. Why can’t Atlanta keep the Georgia Dome for other uses? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/7e8jwn/eli5_why_do_cities_destroy_old_football_stadiums/ | {
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"text": [
"Older stadiums are expensive to maintain and if the major sports team isn’t going to be playing there anymore they often can’t find enough business to suppo... | [] | [] | [
[],
[],
[],
[],
[]
] | |
27qqf6 | What would happen if all the asteroids in and around our solar system were to vanish? | Would it affect the gravitational pull of any of the planets or anything similar? | askscience | http://www.reddit.com/r/askscience/comments/27qqf6/what_would_happen_if_all_the_asteroids_in_and/ | {
"a_id": [
"ci3gvdb"
],
"score": [
10
],
"text": [
"It wouldn't have a serious gravitational effect: the total mass of all the asteroids is about 1/25th the mass of the moon."
]
} | [] | [] | [
[]
] | |
4gfce2 | Why did the USSR dismantle Stalin's cult of personality? | Why was Stalin's cult of personality dismantled? Why did the following Soviet leaders not institute the same type of cult of personality? Was this impulse unique to Stalin? Was he involved with causing Lenin to be mummified and publicly displayed? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4gfce2/why_did_the_ussr_dismantle_stalins_cult_of/ | {
"a_id": [
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],
"text": [
"It was a very coordinated effort by Nikita Khrushchev after the death of Stalin. Khrushchev felt that the cult of personality hurt the Communist Party and the Soviet Union. The main thrust was done during a [\"Secret Speech\" to the CPSU in 1956.... | [] | [] | [
[
"https://www.marxists.org/archive/khrushchev/1956/02/24.htm"
]
] | |
3pidl8 | Do all people of the same gender have the same vasculature? | That is, do all men have the same vein structure as all other men, just as all men have the same bone structure as all other men? (Obviously there are exceptions on the margins, but still.) Men and women have different vasculature for obvious reasons, but I'm wondering if veins are like bones in this way. | askscience | https://www.reddit.com/r/askscience/comments/3pidl8/do_all_people_of_the_same_gender_have_the_same/ | {
"a_id": [
"cw6jriu",
"cw6kmr7",
"cw6tcs3"
],
"score": [
2,
4,
3
],
"text": [
"Vasculature is pretty random, just like fingerprints. There are some general commonalities (like arrangement of major vessels), but microvasculature varies.",
"No. The vasculature is never completel... | [] | [] | [
[],
[],
[]
] | |
1p6vle | the tetris effect. | I can't even imagine it based only on what I read on the Internet. I may have experience it, therefore I request an explanation and hopefully this term will become clearer to me. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1p6vle/eli5_the_tetris_effect/ | {
"a_id": [
"cczc4g4",
"cczi9v0"
],
"score": [
8,
3
],
"text": [
"Tetris effect happens when make an activity for a long period of time and after you stop that activity you keep thinking about it.\n\nThis happened with me when I started playing minesweeper, I remember thinking about the ma... | [] | [] | [
[],
[]
] | |
1s1am4 | What is the first record of a building with more than one floor? | I've always wanted to know 1. who were the first group of people to achieve a building with more than one story 2. how long ago did they achieve this and 3. what were these buildings like and what were they used for.
I'd love it if you could awnser these questions! | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1s1am4/what_is_the_first_record_of_a_building_with_more/ | {
"a_id": [
"cdsxixf"
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"text": [
"1) A good candidate would be Catal Höyük in Turkey, though it seems quite possible there's another even older place where this happened.\n_URL_0_\n\n2) Around 6500 BC, or 8500 years ago.\n\n3) the buildings were probably just multi-purpose reside... | [] | [] | [
[
"http://www.catalhoyuk.com/downloads/Archive_Report_2009.pdf"
]
] | |
za2zm | How have attitudes towards nationalism and patriotism changed over time? | I know that nationalism was popular up to world war two and after the war it was regarded as a dangerous kind of ideology but, based on my limited knowledge of medieval and renaissance societies it seems that in the past people were more concerned with their liege lord, their king or their city than with their country.... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/za2zm/how_have_attitudes_towards_nationalism_and/ | {
"a_id": [
"c62u1yr"
],
"score": [
9
],
"text": [
"I took an undergraduate seminar on Nationalism, so I'll do my best to answer, but hopefully an expert will be able to weigh in as well. Nationalism as we know it today didn't really start until the French Revolution, so in that regard you are co... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Imagined_communities",
"http://en.wikipedia.org/wiki/Benedict_Anderson"
]
] | |
5uagvl | how does a "reflex lcd" work? | I have one of those boogie boards with the LCD that doesn't draw any power.
How does this work?
I can only think it works with silver halides but that's not LCD. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5uagvl/eli5_how_does_a_reflex_lcd_work/ | {
"a_id": [
"ddslscy"
],
"score": [
2
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"text": [
"In a normal LCD you change the polarisation of the crystal with a electrical fields.\n\nBut you can also change it by physical pressing on it. You can do that on a TV or a computer monitor but I don't recommend it since you can damage the display... | [] | [] | [
[]
] | |
zw5o5 | obama's spending in his first term. | My mother and I got into a political debate, and one thing she kept going back to was Obama's spending. Ive done some research, but it seems that anything I encounter is either people on the right discounting what the left said, and visa-versa (surprise surprise). Spell it out for me reddit. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/zw5o5/eli5_obamas_spending_in_his_first_term/ | {
"a_id": [
"c688chv",
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"score": [
4,
2
],
"text": [
"People accuse Obama for a massive increase in spending in 2009, because he took office at the start of that year. However, budgets are approved the year before, so the increase in spending in 2009 is from the Bush administra... | [] | [] | [
[],
[
"http://www.youtube.com/watch?v=P5yxFtTwDcc&feature=youtube_gdata_player",
"http://www.youtube.com/watch?v=SV-xPS5-GxE&feature=youtube_gdata_player"
]
] | |
1yg78p | the difference between crows, ravens, and blackbirds | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1yg78p/eli5_the_difference_between_crows_ravens_and/ | {
"a_id": [
"cfk86n6",
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8,
4,
4
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"text": [
"Common naming conventions for well known species are a bit of a mess because we retain their historical names that don't really reflect their genetic relationships. Technically a Crow is any member of ... | [] | [] | [
[],
[],
[]
] | ||
9s4tqi | Indian History Books | I am an Indian and I know an overlay of many historical events as they were taught in school. But I want to go deep(but not so deep that I dont understand what's going on). So which books do you'll recommend for a person like me.
And please only recommend books, no youtube videos or articles.
Thank You. | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9s4tqi/indian_history_books/ | {
"a_id": [
"e8mbjde",
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"score": [
2,
2
],
"text": [
"Dennis Judd has a good into to British-Indian history, the British Raj. Barbara Metcalf wrote A Concise History of Modern India. Chris Bayly is also good, with several books. Jon E. Wilson's India Conquered is excellent. I'm... | [] | [] | [
[],
[
"https://www.reddit.com/r/AskHistorians/wiki/books/southasia#wiki_india"
]
] | |
f651ta | When and how did Japan create its contemporary national and ethnic identity? | As I understand, the Ryukyuans are considered to be ethnically separate from the Japanese. And, of course, the Ainu are a separate indigenous group, although many have assimilated into Japanese culture. Given that the modern notion of a "Japanese" nationality or ethnic group does not encompass everyone native to the is... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/f651ta/when_and_how_did_japan_create_its_contemporary/ | {
"a_id": [
"fi4g58p"
],
"score": [
2
],
"text": [
"I have little authority to answer your question, which is quite complex and due to its nature, political and controversial. Instead, I'd recommend you look into these readings:\n\n* Hudson, Mark J. Ruins of Identity: Ethnogenesis in the Japanese ... | [] | [] | [
[
"www.jstor.org/stable/j.ctt1kt82wn",
"www.jstor.org/stable/j.ctt6wr1r1",
"www.jstor.org/stable/30209657",
"www.jstor.org/stable/40209352",
"www.jstor.org/stable/j.ctt1xwffc.7",
"www.jstor.org/stable/261100",
"www.jstor.org/stable/651197",
"https://www.reddit.com/r/AskHistorians/com... | |
civ66c | flat sheets on bed? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/civ66c/eli5_flat_sheets_on_bed/ | {
"a_id": [
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"score": [
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6
],
"text": [
"Often the idea is that the flat sheet sits between the possibly sweaty body and the duvet so that you don’t have to wash the duvet quite as often. \n\nPersonally I also often just use a flat sheet as my only cover when I don... | [] | [] | [
[],
[]
] | ||
q41g3 | what's the difference between "sex" and "gender"? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/q41g3/eli5_whats_the_difference_between_sex_and_gender/ | {
"a_id": [
"c3uj8e6",
"c3ujzee"
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"score": [
48,
2
],
"text": [
"[Here's a visual representation](_URL_0_) of the differences between sex, gender, expression, and sexual orientation. Totally safe for work.",
"Words change meaning over time. Years ago, \"sex\" meant is a *person* mal... | [] | [] | [
[
"http://img.gawkerassets.com/img/17c6c5gg7k9rgjpg/original.jpg"
],
[]
] | ||
afeklf | how do singers memorize all their choreography? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/afeklf/eli5how_do_singers_memorize_all_their_choreography/ | {
"a_id": [
"edxzxl4",
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"score": [
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3
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"text": [
"Lots of rehearsals with a professional choreographer/dance crew. \n\nThese performances can take in millions so I’m sure the talent’s preparation is thoroughly funded in by management. ",
"I was in marching band, so I'm ... | [] | [] | [
[],
[]
] | ||
31rhng | When I start consciously breathing, is a different part of my brain taking over than when I breathe without thinking? | askscience | http://www.reddit.com/r/askscience/comments/31rhng/when_i_start_consciously_breathing_is_a_different/ | {
"a_id": [
"cq49djw",
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"score": [
381,
3,
38,
18,
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"text": [
"This isn't my area of expertise, but [I did find an interesting article from a Universi... | [] | [] | [
[
"http://www.reddit.com/r/askscience/comments/31rhng/when_i_start_consciously_breathing_is_a_different/cq4ycrk",
"http://www.unm.edu/~lkravitz/Article%20folder/Breathing.html",
"http://bmo.sagepub.com/content/25/4/495.short",
"http://www.reddit.com/r/askscience/comments/31rhng/when_i_start_consciou... | ||
ifi93 | How exactly does a "will to live" help keep terminally ill patients alive longer? | Inspired by a comment from this thread: _URL_0_
I mean, okay, depression can make you die sooner. And many people *do* give up and grow apathetic or depressed. But can a positive attitude help someone beyond a neutral one, even when one is terminally ill? | askscience | http://www.reddit.com/r/askscience/comments/ifi93/how_exactly_does_a_will_to_live_help_keep/ | {
"a_id": [
"c23c7hm",
"c23c8tn",
"c23e0s1"
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"score": [
150,
11,
2
],
"text": [
"Not much. There are anecdotes where people apparently stayed alive until a loved one arrived from the other side of the country (or world) - or until they could hold their grandchild in their arms. B... | [] | [
"http://www.reddit.com/r/askscience/comments/if091/if_you_receive_a_lifethreatening_injury_does/"
] | [
[
"http://www.ncbi.nlm.nih.gov/pubmed/19753617",
"http://www.ncbi.nlm.nih.gov/pubmed/12424165"
],
[],
[]
] | |
26062g | if the ice/glaciers are melting so fast, why aren't global water levels rising very noticeably? | It's a very common news topic. Antarctic ice is melting twice as fast as usual. Being as the Planet is round...where is all of this melted ice going?
If global warming is melting all the ice on the planet, where is all the water going? Is the ratio of Glaciers melting comparable to the water levels rising globally?... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/26062g/eli5if_the_iceglaciers_are_melting_so_fast_why/ | {
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],
"text": [
"They are? \n\nEDIT: _URL_0_",
"Its a **big** ocean and the ice isnt all melting at the same time. ",
"There's a lot of fuckin' w... | [] | [
"http://www.bbc.com/news/science-environment-27465050"
] | [
[
"http://en.m.wikipedia.org/wiki/Current_sea_level_rise"
],
[],
[],
[
"http://tidesandcurrents.noaa.gov/sltrends/sltrends.shtml"
],
[],
[]
] | |
1kb4nl | Why did A, B, C, D, F become the standard grading system in the U.S.? | I only ask because I am wondering why E is not the standard to stick with an alphabetical system. I know some places use E, but the standard seems to be F. | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1kb4nl/why_did_a_b_c_d_f_become_the_standard_grading/ | {
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"text": [
"I don't normally post here but I did a little bit of research.\n\n[From Wikipedia](_URL_3_)\n\n > At one time (until roughly the *... | [] | [] | [
[
"http://www.screanews.us/NewYork/BrooklynOld_files/ReportCard1949.jpg",
"http://thumbs2.ebaystatic.com/d/l225/m/mjJHsG018q5L2rGxu7MyRow.jpg",
"http://i.ebayimg.com/00/s/MTYwMFgxMTYz/$T2eC16FHJG!E9nm3pwD0BQBy3pIP3!~~60_35.JPG?set_id=880000500F",
"http://en.wikipedia.org/wiki/Academic_grading_in_the... | |
9pjci0 | How did white people feel about Martin Luther King Jr. and other activists during the earlier US civil rights movements? | History usually looks fondly and favors civil rights activists from the past, MLK Jr., Malcom X, Jesse Owens among many other figures. Some great figures in our history.
I was thinking about how divided America is about social justice and some current figures, like Colin Kaepernick as well as other themes of police br... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/9pjci0/how_did_white_people_feel_about_martin_luther/ | {
"a_id": [
"e82mvc1"
],
"score": [
3
],
"text": [
"You might find this thread helpful in answering your question.\n\n & #x200B;\n\n[_URL_2_](_URL_1_)\n\n & #x200B;\n\nHere's a Gallup article on their polling that gives an insight into their data from that time as well\n\n & #x200B;\n\n[_URL_0_](_... | [] | [] | [
[
"https://news.gallup.com/poll/20920/martin-luther-king-jr-revered-more-after-death-than-before.aspx",
"https://www.reddit.com/r/AskHistorians/comments/7pcpk3/is_it_true_that_martin_luther_king_jr_was_mostly/",
"https://www.reddit.com/r/AskHistorians/comments/7pcpk3/is\\_it\\_true\\_that\\_martin\\_lut... | |
rg53r | How to boil water most efficiently? | My roommate is a bit of of an energy-saving nazi. Even on things that cost pennies a month.
Combine this with my insatiable love for tea, and a problem is developing.
I use a standard kettle to heat up ~2cups of water. He uses the microwave for the same purpose. Which method is more energy efficient? | askscience | http://www.reddit.com/r/askscience/comments/rg53r/how_to_boil_water_most_efficiently/ | {
"a_id": [
"c45jh5y"
],
"score": [
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"text": [
"I'm going to assume your 1000 watt microwave is running at full power for ~2 minutes to heat up a cup of water. 1000 watts * 2 minutes / 60 minutes (in an hour) = .033 kWh\n\nA typical electric kettle will use 1500 watts over the course of ~1 mi... | [] | [] | [
[]
] | |
14ed5u | What was the process for a territory transitioning to statehood like during Westward expansion in U.S. history? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/14ed5u/what_was_the_process_for_a_territory/ | {
"a_id": [
"c7cej90",
"c7cjyvy"
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"score": [
2,
3
],
"text": [
"As a follow up question: How would Puerto Rico's process compare to that?",
"I'm going to leave a brief answer (or not so brief) over the pre civil war era to your question until someone of better qualifications comes al... | [] | [] | [
[],
[]
] | ||
2ytt5w | Is the speed of light in interstellar space exactly c? | Okay, here's what I know about the speed of light:
* The speed of light in a perfect vacuum is exactly *c*, by definition (?).
* In certain materials, the speed of light can be slower due to interactions of light waves with the material. I know photons themselves don't slow down, and they [aren't absorbed and reemitt... | askscience | http://www.reddit.com/r/askscience/comments/2ytt5w/is_the_speed_of_light_in_interstellar_space/ | {
"a_id": [
"cpde8ih",
"cpdjf42"
],
"score": [
7,
2
],
"text": [
"You are correct. Due to free electrons in the interstellar medium, lower frequencies (higher wavelengths) of light take longer to propagate through. These electrons make up a cold plasma with a frequency-dependent index of r... | [] | [
"http://www.reddit.com/r/askscience/wiki/physics/light_through_material"
] | [
[
"http://astronomy.swin.edu.au/cms/astro/cosmos/p/Pulsar+Dispersion+Measure",
"http://www.navipedia.net/index.php/Ionospheric_Delay"
],
[]
] | |
h5yr6 | If computers operated in a similar/same way as the human brain wouldn't performance be sky high compared to what it is now? | I was reading this [article](_URL_0_) and it got me thinking if the current system of information handling that is done by a computer (binary system 1s & 0s) is replaced by the system used from a human brain wouldn't it be temporarily/permanently better alternative to let's say Quantum Computing or at least the curre... | askscience | http://www.reddit.com/r/askscience/comments/h5yr6/if_computers_operated_in_a_similarsame_way_as_the/ | {
"a_id": [
"c1stxl1",
"c1stzkg"
],
"score": [
6,
2
],
"text": [
"The human brain is very good at doing certain things that we don't know how to program a computer to do. Basically anything involving pattern recognition fits this; even when we can get a computer to do pattern recognition *... | [] | [
"http://arstechnica.com/science/news/2011/05/learning-how-the-brain-does-its-coding.ars"
] | [
[],
[
"http://www.biomedcentral.com/content/pdf/1471-2202-10-S1-P44.pdf"
]
] | |
z7rt8 | how does amazon prime end up being profitable for amazon? | I have been using Amazon Prime for almost 2 years now and love it. I just do not understand how they can be making money on it. I often order small things, under $20 on a Wednesday and the two day obligation falls on a Saturday. So they FedEx Saturday deliver it, or just overnight it to get there on Friday, a day ear... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/z7rt8/eli5_how_does_amazon_prime_end_up_being/ | {
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"c62dn69"
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"score": [
3,
5,
15,
4,
2
],
"text": [
"It encourages people to order more from Amazon, so it may be a \"loss leader.\" That means Amazon doesn't intend to make money on Prime membership, but it br... | [] | [] | [
[],
[],
[],
[],
[]
] | |
2uuezs | What is the origin of spin, from the perspective of quantum field theory? | askscience | http://www.reddit.com/r/askscience/comments/2uuezs/what_is_the_origin_of_spin_from_the_perspective/ | {
"a_id": [
"cobtb97"
],
"score": [
18
],
"text": [
"Spin arises directly from considering quantum mechanics with rotational symmetry, even without introducing field theory. In any quantum theory with a symmetry, you can arrange all states in irreducible projective unitary* representations of the ... | [] | [] | [
[]
] | ||
5hahv2 | regardless of their views on climate change, why are a majority of politicians against efforts to improve/protect the environment? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5hahv2/eli5_regardless_of_their_views_on_climate_change/ | {
"a_id": [
"dayo5cb",
"dayo8a7"
],
"score": [
4,
3
],
"text": [
"The environment doesn't donate money to campaigns.\n\nAlso just generally not the biggest issue for voters in an awful economy.",
"First, you'd have to define \"improve/protect\" adequately. People disagree strongly on ... | [] | [] | [
[],
[]
] | ||
fvyuxz | Are there manmade satellites in orbit around the moon? | Come to think of it I've never heard or seen mention of moon satellites, let alone data streams. | askscience | https://www.reddit.com/r/askscience/comments/fvyuxz/are_there_manmade_satellites_in_orbit_around_the/ | {
"a_id": [
"fmlbzlb",
"fmlf7l9"
],
"score": [
21,
12
],
"text": [
"The [Lunar Reconnaissance Orbiter (LRO)](_URL_1_) launched in 2009 and is still orbiting the moon. The focus of the LRO satellite is creating elevation maps of the lunar surface. You can access the data collected by the LR... | [] | [] | [
[
"https://lunar.gsfc.nasa.gov/dataproducts.html",
"https://en.wikipedia.org/wiki/Lunar_Reconnaissance_Orbiter"
],
[
"https://en.wikipedia.org/wiki/List_of_missions_to_the_Moon"
]
] | |
5amvhg | why can't we send bigger files through text message than what we could in 2000? | We have smart phones that can record video in 4k , but the largest file we can send; is a pixelated video and choppy audio. You'd think after 16 years of being a cellphone carrier they would at least make it larger than 300kb. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/5amvhg/eli5_why_cant_we_send_bigger_files_through_text/ | {
"a_id": [
"d9houz0"
],
"score": [
29
],
"text": [
"Texting does not use the data channels on your phone. Instead, they piggyback small amounts of data on the periodic ID signal your phone sends and receives from local towers. Your phone needs to identify itself to local cell towers so that whe... | [] | [] | [
[]
] | |
1l70dq | Who was Emperor Majorian? Is he truly one of the most underrated emperors? | In my undergrad years I had a professor who discussed the Roman world on a macro scale detailing economy, military, and political science of the ancient world. Throughout the course he focused on around a dozen emperor "profiles" with the last and final being Majorian. Many of us had heard already about his failure at ... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1l70dq/who_was_emperor_majorian_is_he_truly_one_of_the/ | {
"a_id": [
"cbwfjqv"
],
"score": [
11
],
"text": [
"I've actually answered this question before on this subreddit, or at least something similar. The short answer is yes, I do believe he could have triumphed. \n\nIn the waning years of the Empire, the key to everything was Africa. Prior to the ... | [] | [] | [
[]
] | |
ajr4t0 | In the distant future, could the cosmic microwave background be made visible by accelerating an detector to relativistic speeds? | I have read that the CMB will redshift to invisibility in the distant future. Could the use of near light speed be used to blue shift it back to visibility? | askscience | https://www.reddit.com/r/askscience/comments/ajr4t0/in_the_distant_future_could_the_cosmic_microwave/ | {
"a_id": [
"eezlu4u"
],
"score": [
11
],
"text": [
"Definitely! This is an interesting concept, because most sci-fi books and films never consider it. If you have a near-light-speed spacecraft, that means all the light coming from stars, galaxies, and the cosmic microwave background would be blue... | [] | [] | [
[]
] | |
1f33pf | Am I right about free radicals? | From what I gather, a free radical is an atom, ion, or isotope of an element with 1 or more valency electrons not paired in a covalent bond; this makes it highly reactive as it wants to form a bond, achieve a full outer shell, and become stable.
For example, if a chlorine atom is not paired in C2, it is a free radica... | askscience | http://www.reddit.com/r/askscience/comments/1f33pf/am_i_right_about_free_radicals/ | {
"a_id": [
"ca6dnx2",
"ca6dvhl",
"ca6n2uz"
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"score": [
10,
4,
3
],
"text": [
"Yes, that is correct.\n\nYou can imagine a free radical as some part of a larger molecule where a bond has simply been sliced in two, and you end up with effectively half of a bond (an unpaired electro... | [] | [] | [
[],
[],
[]
] | |
1fhm0g | Why must I travel at a rate of atleast 27 km/second to escape Earth's gravity? Surely, if I travel at a constant speed of 1 km/hour I'll reach space eventually. | What's going on? Are the two speeds measured differently? | askscience | http://www.reddit.com/r/askscience/comments/1fhm0g/why_must_i_travel_at_a_rate_of_atleast_27/ | {
"a_id": [
"caabxxo",
"caabykc",
"caac1cb",
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"score": [
6,
3,
12,
2
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"text": [
"The escape velocity is the velocity you need to *start* at, if you then don't provide any accelerating force (e.g. a rocket) or decelerating force (air resistance). If we fired yo... | [] | [] | [
[],
[],
[
"http://en.wikipedia.org/wiki/Escape_velocity"
],
[]
] | |
agjbcd | how you do specific heat capacity in physics | I just can't wrap my head around it and I would really appreciate some help. | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/agjbcd/eli5_how_you_do_specific_heat_capacity_in_physics/ | {
"a_id": [
"ee6n2h9"
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"score": [
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],
"text": [
"Let's start with the heat capacity. That's how much energy you need to add to raise the temperature of the system by 1 Kelvin. So let's say we have a block of material with a heat capacity of 50J/K. So if we add 50 J of energu to this system, it... | [] | [] | [
[]
] | |
fxs78 | Why does chicken pox come back as shingles? What about antibodies? | Why aren't antibodies our body creates against chicken pox effective against shingles? Why can that come back? | askscience | http://www.reddit.com/r/askscience/comments/fxs78/why_does_chicken_pox_come_back_as_shingles_what/ | {
"a_id": [
"c1jf40g"
],
"score": [
6
],
"text": [
"As somebody who's had shingles at a ridiculously young age, I can actually answer this question. As you may or may not know, shingles is a form of the herpes virus family.\n\nOur body does try and fight chicken pox, but virtually all herpesvirus... | [] | [] | [
[]
] | |
dde31m | atomic & thermonuclear bombs | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/dde31m/eli5_atomic_thermonuclear_bombs/ | {
"a_id": [
"f2g5kvf",
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"f2g8ym4",
"f2gafuq"
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"score": [
3,
2,
2,
2,
2
],
"text": [
"There's a concept in radioactive materials called a \"Critical mass,\" which is a mass that's high enough to cause a chain reaction. A chain reaction is when ... | [] | [] | [
[],
[],
[],
[],
[]
] | ||
d1q55q | - why clothes that are hang to dry and not dry within a certain number of hours stink? does it mean that the clothes were not properly washed by the machine to start? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/d1q55q/eli5_why_clothes_that_are_hang_to_dry_and_not_dry/ | {
"a_id": [
"ezp2ryz",
"ezp372d"
],
"score": [
6,
6
],
"text": [
"Mold can start to grow on them, producing that musty or mildew scent. If clothes stink, you could also be using the wrong amount of detergent or your washing machine may need to be cleaned. I think the mold is normally the c... | [] | [] | [
[],
[]
] | ||
1tr2jx | why is it easier and more natural to extend my mouth to the left side when i smile | for reference I mean a smile similar to the one on the scumbag stacy pic. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1tr2jx/eli5_why_is_it_easier_and_more_natural_to_extend/ | {
"a_id": [
"ceaqk97",
"ceaquve",
"cearu3e"
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"score": [
26,
20,
11
],
"text": [
"I really hope this gets answered because I just spent 5 minutes smiling to myself on both sides of my face.",
"Humans have a tendency to express emotions on the left side of the face more than th... | [] | [] | [
[],
[
"http://www.psychologytoday.com/blog/head-games/201204/want-take-good-picture-show-your-left-side"
],
[]
] | |
8ol7sb | why do our brains like to synchronize certain repetitive actions? | For example, the old trick of drawing a circle clockwise with your right hand, while trying to draw a counterclockwise circle with your left leg. The hard part is trying to do this, as naturally you want to have both motions going the same rate and the same direction. What about the brain is it that makes tasks like th... | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/8ol7sb/eli5_why_do_our_brains_like_to_synchronize/ | {
"a_id": [
"e046eys"
],
"score": [
11
],
"text": [
"I studied brain science in university.\n\n\nThis is actually not your brain but your spinal cord. It contains hardware connections between your various limbs that help them stay perfectly in sync (like for jumping) or perfectly opposite sync (li... | [] | [] | [
[]
] | |
2yhy5o | why does taking a picture of an lcd screen result in fuzzy lines and an unclear picture? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2yhy5o/eli5_why_does_taking_a_picture_of_an_lcd_screen/ | {
"a_id": [
"cpa0t0t"
],
"score": [
5
],
"text": [
"The LCD screen doesn't show a constant image, it updates several times a second (I think it's 60 times a second for most decent monitors), and doesn't update the whole image at once. This is fast enough that your brain sees it as a constantly cha... | [] | [] | [
[]
] | ||
5j4r1i | [European history] How did the fleet led by Christopher Columbus make its return to Spain in 1493? | The journey of the fleet led by Christopher Columbus from Spain to the Americas has been much detailed and understood; I wondered when they decided to return to Spain, was the journey much smoother or still as dangerous as the way they came? My guess is maybe the return was really made easier for them once they knew th... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5j4r1i/european_history_how_did_the_fleet_led_by/ | {
"a_id": [
"dbdx7qb",
"dbdyg8f"
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"score": [
4,
3
],
"text": [
"Columbus actually returned to Europe a different \"way\" than he came -- I mean, he sailed both ways, but on his return route he took a more northerly circular path, to profit from the Gulf Stream current and to avoid the ar... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Christopher_Columbus#/media/File:Viajes_de_colon_en.svg",
"https://en.wikipedia.org/wiki/North_Atlantic_Gyre#/media/File:North_Atlantic_Gyre.png"
],
[
"http://media-3.web.britannica.com/eb-media/24/149024-050-18F7DB22.jpg"
]
] | |
1bqnf2 | Why would this crab rip off its own claw? | Saw this GIF and couldn't understand why the crab rips it off, is it possible that it's injured or something? _URL_0_ | askscience | http://www.reddit.com/r/askscience/comments/1bqnf2/why_would_this_crab_rip_off_its_own_claw/ | {
"a_id": [
"c994a18",
"c994vou",
"c999don"
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"score": [
63,
10,
16
],
"text": [
"It is probably injured. Crabs can regenerate their limbs, so it will grow back.\n[Here is a video of a crab amputing his claw after getting in a fight with boobies](_URL_0_)",
"From last year: _U... | [] | [
"http://pics.kuvaton.com/kuvei/like_i_give_a_fuck.gif"
] | [
[
"http://www.youtube.com/watch?v=v241TF-cSzU"
],
[
"http://www.reddit.com/r/askscience/comments/qsy1c/this_is_cool_but_what_is_the_crab_doing/"
],
[]
] | |
3p44j5 | why is that when most foods spoil the get soft and mushy, but breads and other starches get harder? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3p44j5/eli5_why_is_that_when_most_foods_spoil_the_get/ | {
"a_id": [
"cw2y9wu"
],
"score": [
6
],
"text": [
"I think you are confusing the \"stale\" phenomenon with spoilage. Stale bread is perfectly edible. However, the starch molecules that make up its texture have lined up on a microscopic scale to become harder. But it is still OK to eat.\n\n\nSp... | [] | [] | [
[]
] | ||
jd7g0 | How did elements past iron form? | I understand that light elements are formed via nuclear fusion in stars, and that you can't fuse past iron. So, how did the heavier elements form? | askscience | http://www.reddit.com/r/askscience/comments/jd7g0/how_did_elements_past_iron_form/ | {
"a_id": [
"c2b54bo",
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"score": [
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16,
5,
12,
11,
6,
3,
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"text": [
... | [] | [] | [
[],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/R-process",
"http://en.wikipedia.org/wiki/S_process"
],
[
"http://en.wikipedia.org/wiki/Rp-process",
"http://en.wikipedia.org/wiki/P-nuclei#Possible_processes",
"http://en.wikipedia.org/wiki/R-process",
"http://en.wikipedia.org/wiki... | |
1y6r1c | if a current needs a circuit to flow, how does it get from the power station to my house? are the power lines above my house actually running in both directions? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1y6r1c/if_a_current_needs_a_circuit_to_flow_how_does_it/ | {
"a_id": [
"cfhu7ew",
"cfhujd2"
],
"score": [
4,
3
],
"text": [
"The powerlines are 60Hz full cycle. Electrons flow both directions (think of two lumberjacks with a giant saw - one pushes while the other pulls then the other pushes while the first one pulls). The appliance that use 240v u... | [] | [] | [
[],
[]
] | ||
1k1jvv | is democracy flawed? if so how? what are it's weaknesses? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1k1jvv/eli5_is_democracy_flawed_if_so_how_what_are_its/ | {
"a_id": [
"cbkes5t",
"cbkesms",
"cbkf9e5"
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"score": [
3,
3,
3
],
"text": [
"This might be better asked in /r/asksocialscience. I'm sure you'll get some fairly well thought out and supported responses from that sub.",
"Two drawbacks I can think of, off the top of my head:\n\... | [] | [] | [
[],
[],
[]
] | ||
ufqwu | why are their different levels of octane for gasoline (regular, premium, etc) and how does that effect my car (and why do some cars need regular while others need premium)? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/ufqwu/why_are_their_different_levels_of_octane_for/ | {
"a_id": [
"c4uzm57"
],
"score": [
42
],
"text": [
"To put this into something a five year old might understand...\n\nImagine we gave you three fully-blown balloons. We wrote 87 on one, 89 on another, and 92 on the last one. That number indicates how hard you can squeeze the balloon before it pop... | [] | [] | [
[]
] | ||
2m6sje | why does my vagina pulse after orgasm? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/2m6sje/eli5_why_does_my_vagina_pulse_after_orgasm/ | {
"a_id": [
"cm1fa6q"
],
"score": [
3
],
"text": [
"Next time it happens check your wrist or throat pulse and see if the pulse there is the same as your heart beat. It probably is. You are likely just feeling the blood pulsing in the sensitized and blood filled (naturally swollen) tissues."
]
} | [] | [] | [
[]
] | ||
1t660q | why are people rebelling in the central african republic | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1t660q/eli5_why_are_people_rebelling_in_the_central/ | {
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"Francois Bozize was the long-standing President of the CAR until early this year, when he was overthrown by a rebel group called Séléka which is a left-wing rebel group led by the now President, Michel Djotodia. The CAR has seen coups before, inc... | [] | [] | [
[]
] | ||
1auqvk | imagine you're driving a car at the speed of light. would it be possible to move around in the car? | For example, if someone was standing at the back of the car and walked to the front... would he be traveling faster than the speed of light (since the car is already at speed c, and he's moving inside it)? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1auqvk/eli5_imagine_youre_driving_a_car_at_the_speed_of/ | {
"a_id": [
"c90x9mv"
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"score": [
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"text": [
"Travelling at the speed of light is impossible - it would take an infinite amount of energy to accelerate to that speed. So instead let's assume the car was really close to the speed of light, e.g. 99.9% the speed of light.\n\nFrom a stationary o... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Time_dilation"
]
] | |
2oyboz | How do submarines navigate without sonar and avoid hitting things? | I was watching the hunt for red October and started thinking about submarine navigation. I know they have depth gauges and charts that they can use to keep track of their location but two specific questions:
1. Without using sonar, how can they be sure how far they are from the bottom? Doesn't the depth of the ocean c... | askscience | http://www.reddit.com/r/askscience/comments/2oyboz/how_do_submarines_navigate_without_sonar_and/ | {
"a_id": [
"cmrsjma",
"cmrzydo"
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"score": [
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"text": [
"There's a lot of questions to unpack here but the short answer is [inertial navigation](_URL_0_) - a device which uses gyroscopes and accelerometers to estimate the course through water without any external input or data. T... | [] | [] | [
[
"http://en.wikipedia.org/wiki/Inertial_navigation_system"
],
[
"http://www.ssp.navy.mil/about/history_facts_3.shtml"
]
] | |
1duupr | Why did the Czech Republic and Slovakia deal with lustration so differently after the fall of Communism? | I attended a lecture in European history and the professor said that the Czech republic was far more stringent against ex-communists within the new democracy than Slovakia. The only explanation he provided was that the Czechs were far more resistant to Soviet rule and thus were purged and suppressed (Like '68 in Pragu... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1duupr/why_did_the_czech_republic_and_slovakia_deal_with/ | {
"a_id": [
"c9u32pm"
],
"score": [
2
],
"text": [
"As a Czech I don't think this claim is very accurate. There was no direct Soviet rule, in 1968 they just thwarted the liberal reforms. The Slovaks didn't have any benefit from it. \n\nThe real reason would be the differences between the 2 communi... | [] | [] | [
[]
] | |
2h31vr | At a molecular level, why does fiberglass break off so easy and bind to skin causing an itchy sensation? | askscience | http://www.reddit.com/r/askscience/comments/2h31vr/at_a_molecular_level_why_does_fiberglass_break/ | {
"a_id": [
"ckqr2xh"
],
"score": [
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"text": [
"It isn't actually too much to do at the molecular level. Fiberglass is exactly what it sounds like, very thin strands of glass. As you might expect these thin bits of glass are very easy to break and when they break into very small shards, they e... | [] | [] | [
[]
] | ||
9872ow | why are wounds more prone to scarring as you grow older? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/9872ow/eli5_why_are_wounds_more_prone_to_scarring_as_you/ | {
"a_id": [
"e4echmq"
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"text": [
"“Wounds on early mammalian embryos will heal perfectly with no scarring or evidence of injury. Once grown, the same skin that would have once healed with no sign of injury will produce a scar if injured. The difference in embryonic growth factors... | [] | [] | [
[]
] | ||
72ilot | how does the 'controversial' selection on reddit work? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/72ilot/eli5_how_does_the_controversial_selection_on/ | {
"a_id": [
"dnite01"
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"score": [
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"text": [
"Well, let's check the [open source Reddit source code](_URL_0_):\n\n\n\n cpdef double controversy(long ups, long downs):\n \"\"\"The controversy sort.\"\"\"\n if downs < = 0 or ups < = 0:\n return 0\n \n ma... | [] | [] | [
[
"https://github.com/reddit/reddit/blob/master/r2/r2/lib/db/_sorts.pyx"
]
] | ||
bcq7zq | why are anti-biotics prescribed over 10 days? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/bcq7zq/eli5_why_are_antibiotics_prescribed_over_10_days/ | {
"a_id": [
"eksmcvx",
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"score": [
5,
4,
2
],
"text": [
"Because not all bacteria die at once when you take a pill. It is important to really really kill all of them, because bacterial growth is very fast. When you stop after 99 % are killed the infection wil... | [] | [] | [
[],
[],
[]
] | ||
xsyqz | Is attraction involuntary? | Sexual attraction seems involuntary, though I'd appreciate any links/info to back that up.
But what about emotional attraction? Qualities we find attractive?
| askscience | http://www.reddit.com/r/askscience/comments/xsyqz/is_attraction_involuntary/ | {
"a_id": [
"c5pd8au",
"c5pe1p4"
],
"score": [
34,
7
],
"text": [
"As no one has answered I will do my best - a mix of both nature and nurture. I majored in physical anthropology and (though I can't source well from my phone most of this is well known) facial and body symmetry as well as ... | [] | [] | [
[],
[]
] | |
2gk9dw | Is there any legitimate evidence against the theory of evolution? | askscience | http://www.reddit.com/r/askscience/comments/2gk9dw/is_there_any_legitimate_evidence_against_the/ | {
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"ckjw9zq",
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"text": [
"The theory of ev... | [] | [] | [
[],
[],
[],
[],
[],
[],
[],
[],
[],
[
"https://en.wikipedia.org/wiki/Konstantin_Mereschkowski",
"https://en.wikipedia.org/wiki/Lynn_Margulis",
"https://en.wikipedia.org/wiki/Endosymbiotic_theory"
],
[]
] | ||
3yhjhp | why is al jazeera quickly becoming a trusted american news source? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3yhjhp/eli5_why_is_al_jazeera_quickly_becoming_a_trusted/ | {
"a_id": [
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"http://www.jour... | ||
6j31r5 | How does the bite of a Lone Star tick cause an allergy to alpha-galactose? | askscience | https://www.reddit.com/r/askscience/comments/6j31r5/how_does_the_bite_of_a_lone_star_tick_cause_an/ | {
"a_id": [
"djbcplg"
],
"score": [
14
],
"text": [
"A tick bite transfers a [Borrelia type bacteria ](_URL_0_) to your body. Your body fights off this bacteria by targetting certain elements on the bacteria's body. This isn't super specific though. The element we might be targetting can have 10 c... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Borrelia",
"https://en.wikipedia.org/wiki/Cross-reactivity"
]
] | ||
3g9tor | does it matter which oven rack you cook your food on, and if so why? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/3g9tor/eli5_does_it_matter_which_oven_rack_you_cook_your/ | {
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"ctw5t6s",
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"score": [
2,
2,
2
],
"text": [
"Well the higher it is the closer to the heat source so you should probably put the thing you are slow cooking lower down.",
"Ideally, no, because if you keep the oven door closed, the air inside the... | [] | [] | [
[],
[],
[]
] | ||
cydmbh | Is it possible that millions of years ago there was an advanced civilization on Earth that due to geological reasons we don't have any evidence of? | askscience | https://www.reddit.com/r/askscience/comments/cydmbh/is_it_possible_that_millions_of_years_ago_there/ | {
"a_id": [
"eyrktgm",
"eyrvec7",
"eys53rd",
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"score": [
50,
8,
23,
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"text": [
"There's a thought experiment paper exactly on this question entitled [The Silurian Hypothesis](_URL_1_), which basically asks if there was an advanced civilization that existed f... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Silurian",
"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/77818514AA6907750B8F4339F7C70EC6/S1473550418000095a.pdf/div-class-title-the-silurian-hypothesis-would-it-be-possible-to-detect-an-industrial-civilization-in-the-geological-record-div.pdf",
... | ||
4ba7l2 | how does my throat not get confused more often and send food and liquids down my wind pipe? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/4ba7l2/eli5_how_does_my_throat_not_get_confused_more/ | {
"a_id": [
"d17ccok",
"d17cjc1"
],
"score": [
3,
3
],
"text": [
"anotomy. when you swallow, a flap of skin called the epiglottis covers the trachea and allows food to just go down the esophagus. \n\nedit it appears that its not a flap of skin, but a cartilage structure. \n\n_URL_0_",
... | [] | [] | [
[
"https://en.m.wikipedia.org/wiki/Epiglottis"
],
[]
] | ||
20oow7 | As a tenant of Marxist theory, how were atheist ideals spread throughout communist states (e.g. USSR, China)? | Marx viewed religion as irrelevant or even as a roadblock to human progress. Seeing as this was a major concept within Marxism:
* How did Lenin and later Soviets disseminate atheist ideals throughout the USSR (especially in light of predominantly Orthodox Christian communities)?
* How did these ideals influence Chines... | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/20oow7/as_a_tenant_of_marxist_theory_how_were_atheist/ | {
"a_id": [
"cg5ec9g",
"cg5fuyc"
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"score": [
6,
4
],
"text": [
"It's no secret that China is less than welcoming of missionaries and overt religious practices that may be seen to disrupt the social order. However, there are a huge number of churches and mosques throughout China, and it's... | [] | [] | [
[],
[]
] | |
lkl3l | why are black holes not very dense? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/lkl3l/eli5_why_are_black_holes_not_very_dense/ | {
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"score": [
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6
],
"text": [
"A black hole is made of 2 parts - the singularity and the event horizon.\n\nThe singularity is very, very dense and contains all the matter or energy in the black hole. Singulariti... | [] | [] | [
[],
[],
[],
[]
] | ||
553mrl | How do we know the geographical origin of certain plant and animal species ? | It is said that horses were domesticated in the Eurasian Steppes and wheat comes from the Fertile Crescent . How can we be so sure of this when these species are so common everywhere now ? How can genetics establish the geographical origin of a species ?
Can we possibly extract a date from genetics for when horses wer... | askscience | https://www.reddit.com/r/askscience/comments/553mrl/how_do_we_know_the_geographical_origin_of_certain/ | {
"a_id": [
"d89uhm9",
"d87cemd"
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"score": [
3,
5
],
"text": [
"- Fossils: we can *track* the evolution of, say, horses and approximate where and when they evolved. So, for instance, we may have lots of tiny horse fossils in North America but very few elsewhere, showing that their origin... | [] | [] | [
[
"https://en.wikipedia.org/wiki/Molecular_clock"
],
[]
] | |
38jn43 | Was there a practical reason the Japanese stopped wearing amour in combat, aside from wanting to have a military that looked western? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/38jn43/was_there_a_practical_reason_the_japanese_stopped/ | {
"a_id": [
"crvo89j"
],
"score": [
7
],
"text": [
"Armour is expensive, heavy and largely ineffective against firearms at the time. Keep in mind these were armies trained by western officers in western tactics. The time of wearing armour was since past in European and American armies. \n\n\nCommo... | [] | [] | [
[]
] | ||
1h4m4n | Why do we have only one heart? | askscience | http://www.reddit.com/r/askscience/comments/1h4m4n/why_do_we_have_only_one_heart/ | {
"a_id": [
"caqtgbd",
"caqtpqn",
"caqu8ds"
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"score": [
11,
5,
2
],
"text": [
"From an evolutionary standpoint, anything likely to damage the heart will cause sufficient blood loss to render a backup heart useless. Thus having a second heart wouldn't increase survival, and humans... | [] | [] | [
[],
[],
[]
] | ||
fqrftn | how are radiological examinations like ct or mrt of moving organs (i.e. heart) carried out? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/fqrftn/eli5_how_are_radiological_examinations_like_ct_or/ | {
"a_id": [
"flskk5a"
],
"score": [
2
],
"text": [
"This is a long-standing problem with radiology. \n\nFor lungs, you simply ask the patient to hold their breath for 10 seconds or so. This usually accomplishes the task of fixating the lungs.\n\nFor the heart, you hook up some electrodes to the pa... | [] | [] | [
[]
] | ||
ar5yuo | World War Two is known in popularly portrayed in Western Cinema as being primarily fought by white men, yet it had huge populations of Colonial soldiers fighting on the side of Great Britain and France. How were those veterans treated upon return to their homeland? | Follow up question: how did the veteran treatment compare to those returning after World War One? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/ar5yuo/world_war_two_is_known_in_popularly_portrayed_in/ | {
"a_id": [
"eglqytq"
],
"score": [
28
],
"text": [
"Part 1: Sources in part 2\n\nThe treatment of Colonial troop veterans following WWII is a mixed bag and often tangled with the process of decolonization that followed in the late 20th century.\n\n & #x200B;\n\nFrance recruited 179,000 Senegalese... | [] | [] | [
[
"https://www.bbc.com/news/world-asia-india-36801602"
]
] | |
4bgab0 | What do historians know about the origin of the Kaaba? | In Islam, the Kaaba is said to have been built for Abraham, but what do historians know about its origins? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4bgab0/what_do_historians_know_about_the_origin_of_the/ | {
"a_id": [
"d191xks"
],
"score": [
3
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"text": [
" > The reason which led them to the worship of images and stones was the following: No one left Mecca without carrying away with him a stone from the stones of the Sacred House (al-Haram) as a token of reverence to it, and as a sign of deep affe... | [] | [] | [
[
"http://answering-islam.org/Books/Al-Kalbi/",
"http://www.worldcat.org/title/classical-islam-a-history-600-ad-to-1258-ad/oclc/56825170",
"http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Diodorus_Siculus/3C*.html",
"http://www.worldcat.org/title/kinship-and-marriage-in-early-arabia/oclc/797932953... | |
gorg3 | When I eat raw cookie dough, what is the chance that I will get salmonella poisoning? | Specifically, Nestle Tollhouse Cookies.
....Even more specifically, the ones with really big chocolate chips. | askscience | http://www.reddit.com/r/askscience/comments/gorg3/when_i_eat_raw_cookie_dough_what_is_the_chance/ | {
"a_id": [
"c1p4z26",
"c1p4zzf",
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"score": [
6,
3,
2
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"text": [
"Alton Brown's egg-centric episode of Good Eats (which is generally pretty well researched) puts the risk of contracting salmonella from one egg at between 1 in 1,000 and 1 in 2,000. That said, raw cook... | [] | [] | [
[],
[],
[]
] | |
3j1dsj | Why is it easier to interpret small pixelated images over large pixelated images? | For example, in this [link](_URL_0_) (pixelated porn;potentially nsfw) you'll see small pixelated images. If you click on an image you get a bigger version of the pixelated image to the left. You can figure out what the small version of the image is more easily than the large version. Why is this? Is it because the bra... | askscience | https://www.reddit.com/r/askscience/comments/3j1dsj/why_is_it_easier_to_interpret_small_pixelated/ | {
"a_id": [
"cuo0xte"
],
"score": [
2
],
"text": [
"There are a few reasons. The basic reason, though, is that for a given pixelated image, the [spatial frequency](_URL_0_) of the image changes with viewing distance, and that when viewed close up.\n\nIn the examples you linked to, the smaller imag... | [] | [
"http://www.adamconnelly.com/gallery/gallery2002.html"
] | [
[
"http://www.cns.nyu.edu/~david/courses/perception/lecturenotes/channels/spatfreq.jpg"
]
] | |
f7gya | What are the Credible, Objective sources for information on climate change? | I've been googling for days, and I'm getting lost in the information overload. How do you know you are getting objective information and what is your source? (Not trolling) | askscience | http://www.reddit.com/r/askscience/comments/f7gya/what_are_the_credible_objective_sources_for/ | {
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"c1dv104",
"c1dv5sd",
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"score": [
3,
5,
4,
2
],
"text": [
"I like to go to people who cite (and write) references in peer-reviewed journals. My go-to source for news and current events has traditionally been _URL_0_. The various reports ... | [] | [] | [
[
"realclimate.org"
],
[],
[
"scholar.google.com"
],
[]
] | |
k7hhj | why are the paperback book versions not released at the same time as the hardcover? | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/k7hhj/eli5_why_are_the_paperback_book_versions_not/ | {
"a_id": [
"c2i2f6h",
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"c2i7hd7"
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"score": [
13,
9,
3,
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13,
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"text": [
"To try to encourage [force] eager readers who want the book first, to pay more for the har... | [] | [] | [
[],
[],
[],
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1f60bt | What would be the "happiest" place and time to live in before the year 1000 CE? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/1f60bt/what_would_be_the_happiest_place_and_time_to_live/ | {
"a_id": [
"ca75e4i",
"ca75pc6"
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"score": [
3,
3
],
"text": [
"Hey man, sorry to be the bubble burster here, but this question would fall under [poll-type questions that are against the rules of the subreddit.](_URL_0_) Maybe you could split up some of the smaller questions? Such as the... | [] | [] | [
[
"http://www.reddit.com/r/AskHistorians/wiki/rules#wiki_no_.22poll.22-type_questions"
],
[
"http://en.wikipedia.org/wiki/Vigiles",
"http://en.wikipedia.org/wiki/Executive_Magistrates_of_the_Roman_Republic#Provocatio"
]
] | ||
x0wiy | twitter / fb / g+ paid followers/fans? | I've seen lots of new website that basically sell traffic, traffic to your content on Facebook, Twitter, G+, YouTube, etc.
ELI5:
* have any of you ever tried it?
* who actually creates the traffic, or are they all bots?
* any tips on finding people who can generate the traffic (not the reselling websites)?
* does ... | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/x0wiy/eli5_twitter_fb_g_paid_followersfans/ | {
"a_id": [
"c5iar3j"
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"score": [
2
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"text": [
" > have any of you ever tried it?\n\nI have not.\n\n > who actually creates the traffic, or are they all bots?\n\nMostly bots, some real people thrown in there. Real people may not be that invested, so might be functionally indistinguishable fro... | [] | [] | [
[]
] | |
553lm2 | does earth look as it does in pictures (blue and all), when seen from the lunar surface? | Does Earth also light up the night sky on moon? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/553lm2/eli5_does_earth_look_as_it_does_in_pictures_blue/ | {
"a_id": [
"d878604",
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"score": [
10,
2
],
"text": [
"Look at [this photo of the earth](_URL_0_) (yes, it is real!) taken from the surface of the moon.\n\nThe moon does not have an atmosphere, so there are no air particles that change how we see the earth. Also, it never light... | [] | [] | [
[
"https://upload.wikimedia.org/wikipedia/commons/d/d9/Earthrise_over_Compton_crater_-LRO_full_res.jpg"
],
[
"https://www.timeanddate.com/astronomy/earthshine.html"
]
] | |
4fxeiy | Why did the UK fight in the Korean War? (help with primary sources) | Why did the UK fight in the Korean War? (help with primary sources)
From what little I know (I'm just starting: _URL_0_) the United Kingdom contributed a relatively substantial amount of soldiers (90,000) to the UN side during the conflict.
So I'm interested in researching why the UK got so involved in the Korean War. ... | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/4fxeiy/why_did_the_uk_fight_in_the_korean_war_help_with/ | {
"a_id": [
"d2dki0t"
],
"score": [
2
],
"text": [
"I'd recommend seeing what primary sources your library has. There are published collections of British diplomatic materials from the 20th century - try looking for British Documents on Foriegn Affairs, and find selections about Korea or East Asia... | [] | [
"http://news.bbc.co.uk/2/hi/uk_news/1285708.stm",
"http://news.bbc.co.uk/2/hi/asia-pacific/1281413.stm"
] | [
[]
] | |
17ohwg | Has there ever been a situation where a technologically inferior people successfully defended themselves or defeated in open battle a technologically superior enemy? | How did they do it? How long did they last? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/17ohwg/has_there_ever_been_a_situation_where_a/ | {
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... | [] | [] | [
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"http://en.wikipedia.org/wiki/Battle_of_Isandlwana"
],
[
"http://en.wikipedia.org/wiki/Battle_of_Adwa"
],
[
"http://en.wikipedia.org/wiki/Battle_of_Tannenberg_(1410)"
],
[],
[],
[],
[
"http://en.wikipedia.org/wiki/Battle_of_Annual"
],
[
"http://books.google.com/books?id=S... | |
2tqmne | Prior to the 20th century, were there any other reactionary environmentalist movements? | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/2tqmne/prior_to_the_20th_century_were_there_any_other/ | {
"a_id": [
"co2i02z"
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"text": [
"\"Environmentalist' is a touchy word within environmental history. Environmentalism, the late-twentieth century movement, is marked by advocacy for environmental preservation, anti-industrialization and anti-corporate capitalism -- none of which ... | [] | [] | [
[
"http://dp.la/search?utf8=✓&q=street+garbage"
]
] | ||
1qdbe0 | why don't all climbers use paragliding to get off for example mount everest? | It's got to be a lot safer, right? The descent is dangerous as hell. | explainlikeimfive | http://www.reddit.com/r/explainlikeimfive/comments/1qdbe0/eli5_why_dont_all_climbers_use_paragliding_to_get/ | {
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"text": [
"Getting to the top is hard. Taking all that extra equipment up is hard work.",
"I bel... | [] | [] | [
[],
[],
[
"http://www.xcmag.com/2013/05/60-years-of-everest-paragliding-and-hang-gliding-on-the-worlds-highest-peak/"
],
[],
[],
[],
[
"http://www.reddit.com/r/todayilearned/comments/1qcliw/til_that_in_2011_two_men_paraglided_from_the/"
],
[]
] | |
5y7453 | What determines how radioactive an element is? (How much radiation an element gives off). | What determines how radioactive an element is...or to put it another way, how much radiation it gives off? Uranium and Americium both emit an alpha particle, but must be handled differently. | askscience | https://www.reddit.com/r/askscience/comments/5y7453/what_determines_how_radioactive_an_element_is_how/ | {
"a_id": [
"denok42"
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"score": [
7
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"text": [
"[Here](_URL_0_) is a primer on the different types of radioactive decay. Different properties of the nucleus will make it \"want\" to decay in certain ways. And some nuclei \"want\" to decay more than others.\n\nIn addition there are conservation... | [] | [] | [
[
"https://www.reddit.com/r/askscience/comments/5xip7e/i_dont_understand_nuclear_radiation_how_does_it/dej6w9q/?context=3"
]
] | |
3snzk9 | how do you find a lawyer if you are in jail? | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/3snzk9/eli5_how_do_you_find_a_lawyer_if_you_are_in_jail/ | {
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"text": [
"I... | [] | [] | [
[],
[],
[],
[],
[],
[],
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[],
[],
[],
[],
[]
] | ||
152ywe | Invasion of Normandy WWII significant areas? | What are the main points of Canadians and contribution to WWII, mainly the Invasion of Normandy (D-Day). Any main points about Juno Beach that I should know about? Also, my teacher mentioned something about the "Maple Leaf Route" and Liberation of Europe, I need to write a information about this. Thankyou | AskHistorians | http://www.reddit.com/r/AskHistorians/comments/152ywe/invasion_of_normandy_wwii_significant_areas/ | {
"a_id": [
"c7it3jg",
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"score": [
4,
4
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"text": [
"The largest army ever raised by Canada fought in World War II. The Canadian First Army was in Montgomery's 21st Army Group, and fought to the north of the US Army during the drive across Fr... | [] | [] | [
[],
[]
] | |
43zkb0 | is there anyway for a human body eating the right foods and doing right exercise to be 100% efficient leaving no waste products | explainlikeimfive | https://www.reddit.com/r/explainlikeimfive/comments/43zkb0/eli5_is_there_anyway_for_a_human_body_eating_the/ | {
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"score": [
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],
"text": [
"I am assuming you mean no poop. Some babies who are breastfed can go a couple weeks between poops...because the... | [] | [] | [
[],
[],
[],
[],
[],
[],
[]
] | ||
2hmkyr | What makes energy drinks so bad for you while drinking two cups of coffee everyday is okay? | askscience | http://www.reddit.com/r/askscience/comments/2hmkyr/what_makes_energy_drinks_so_bad_for_you_while/ | {
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"text": [
"The problem is th... | [] | [] | [
[
"http://www.webmd.com/food-recipes/news/20121025/how-much-caffeine-energy-drink"
],
[],
[
"https://i.imgur.com/saXCa.jpg",
"http://www.sugarstacks.com/beverages.htm",
"http://authoritynutrition.com/top-13-evidence-based-health-benefits-of-coffee/"
],
[],
[
"http://www.ncbi.nlm.nih.... | ||
5gvvm4 | I know Germany is often cited as a nation that faced and acknowledged its history in WW 2 - in what ways did East Germany's national approach to the Nazi past differ from that of West Germany? | AskHistorians | https://www.reddit.com/r/AskHistorians/comments/5gvvm4/i_know_germany_is_often_cited_as_a_nation_that/ | {
"a_id": [
"davqlcn"
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"score": [
7
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"text": [
"The GDR's approach to the problem of the Nazi past mirrored that of the FRG, but also departed from it in several important dimensions. Evasion of the immediate past was common in both Germanys, despite the widespread assumption that the FRG in p... | [] | [] | [
[
"http://www.scrapbookpages.com/Sachsenhausen/SachsenhausenPhotos/Liberation02.jpg",
"http://noambit.typepad.com/my_weblog/images/2008/03/26/sachsenhausen_memorial_statue.jpg",
"http://www.stiftung-bg.de/gums/en/geschichte/natmahn/bilder/plkt-nmg.jpg"
]
] |
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